1 Ministry of Health and Child Care, AIDS and TB Department, Harare, Zimbabwe.
2 Ministry of Health and Child Care, AIDS and TB Department, Harare, Zimbabwe, International Union Against Tuberculosis and Lung Disease, Paris, France.
3 Directorate of Laboratory Services.
4 Directorate of Pharmacy Services, Ministry of Health and Child Care, Harare, Zimbabwe.
5 International Union Against Tuberculosis and Lung Disease, Paris, France.
6 International Union Against Tuberculosis and Lung Disease, Paris, France, Department of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, UK, <email></email>, Email: adharries@theunion.org.